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1 /***************************************************************************/
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2 /* */
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3 /* svsfnt.h */
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4 /* */
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5 /* The FreeType SFNT table loading service (specification). */
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6 /* */
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7 /* Copyright 2003, 2004 by */
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8 /* David Turner, Robert Wilhelm, and Werner Lemberg. */
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9 /* */
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10 /* This file is part of the FreeType project, and may only be used, */
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11 /* modified, and distributed under the terms of the FreeType project */
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12 /* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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13 /* this file you indicate that you have read the license and */
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14 /* understand and accept it fully. */
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15 /* */
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16 /***************************************************************************/
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17
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18
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19 #ifndef __SVSFNT_H__
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20 #define __SVSFNT_H__
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21
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22 #include FT_INTERNAL_SERVICE_H
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23 #include FT_TRUETYPE_TABLES_H
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24
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25
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26 FT_BEGIN_HEADER
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27
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28
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29 /*
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30 * SFNT table loading service.
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31 */
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32
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33 #define FT_SERVICE_ID_SFNT_TABLE "sfnt-table"
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34
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35
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36 /*
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37 * Used to implement FT_Load_Sfnt_Table().
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38 */
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39 typedef FT_Error
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40 (*FT_SFNT_TableLoadFunc)( FT_Face face,
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41 FT_ULong tag,
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42 FT_Long offset,
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43 FT_Byte* buffer,
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44 FT_ULong* length );
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45
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46 /*
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47 * Used to implement FT_Get_Sfnt_Table().
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48 */
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49 typedef void*
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50 (*FT_SFNT_TableGetFunc)( FT_Face face,
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51 FT_Sfnt_Tag tag );
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52
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53
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54 /*
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55 * Used to implement FT_Sfnt_Table_Info().
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56 */
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57 typedef FT_Error
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58 (*FT_SFNT_TableInfoFunc)( FT_Face face,
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59 FT_UInt idx,
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60 FT_ULong *tag,
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61 FT_ULong *offset,
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62 FT_ULong *length );
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63
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64
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65 FT_DEFINE_SERVICE( SFNT_Table )
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66 {
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67 FT_SFNT_TableLoadFunc load_table;
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68 FT_SFNT_TableGetFunc get_table;
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69 FT_SFNT_TableInfoFunc table_info;
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70 };
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71
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72 #ifndef FT_CONFIG_OPTION_PIC
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73
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74 #define FT_DEFINE_SERVICE_SFNT_TABLEREC(class_, load_, get_, info_) \
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75 static const FT_Service_SFNT_TableRec class_ = \
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76 { \
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77 load_, get_, info_ \
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78 };
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79
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80 #else /* FT_CONFIG_OPTION_PIC */
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81
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82 #define FT_DEFINE_SERVICE_SFNT_TABLEREC(class_, load_, get_, info_) \
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83 void \
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84 FT_Init_Class_##class_( FT_Service_SFNT_TableRec* clazz ) \
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85 { \
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86 clazz->load_table = load_; \
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87 clazz->get_table = get_; \
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88 clazz->table_info = info_; \
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89 }
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90
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91 #endif /* FT_CONFIG_OPTION_PIC */
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92
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93 /* */
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94
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95
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96 FT_END_HEADER
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97
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98
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99 #endif /* __SVSFNT_H__ */
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100
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101
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102 /* END */
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